On Geonosis, 17 and fellow trooperThree-Five greeted the clone commandoRC-1138, known as "Boss." Trooper 17 pointed out Boss to his companion, who responded by praising the highly-skilled commandos, remarking that they could defeat the Separatist forces alone. The trio then joined two other clone troopers in defending a barricade from Confederate B1 battle droids. The droids blew through a wall to avoid the barricade, killing one of the troopers. Despite the casualty, Boss, 17, 35, and the other surviving clone defeated the attacking droids, pushing them back to a Separatist gun emplacement.[2]